Sugar-beet webworm
Marsh, H.O.
Sugar-beet webworm - Washington 1912 - 58-70 p. - Sugar-Beet United States Department of Agriculture, Bureau of Entomology. Bulletin No. 109 .
Sugar-beet webworm - Washington 1912 - 58-70 p. - Sugar-Beet United States Department of Agriculture, Bureau of Entomology. Bulletin No. 109 .